I liked my used heated steering wheel so much that I bought recently for my X5 that I ordered a new heated steering wheel for it today
I will put the used one on my 323i when the new one gets in. The used one was from an e39 and was a tad thinner than the factory non heated x5 wheel I had originally.
That tiny bit of difference was bugging me and since I plan on keeping the e53 X5 long term I figured I would treat myself to a brand new steering wheel that was the right thickness.
Supposed to get here feb 6th.